need help please

all you need is 1 sub out on a radio, just use one set of RCA cables and stretch them through your car to the "input" of your amplifier (white and red rca holes) let me know if you need further explanation/guidance...

 

if you are going to be using one of the video outs to stretch over to another screen (behind you, assuming you have another screen) you can try connecting the wire intended to be on the parking brake to the ground wire of the radio (black wire) see if that works, on some of the previous model screens you were able to pull that trick off, now with these newer models they found a way not to let that work, sooo you can look into doing a relay bypass (includes a 4 or 5 pin relay, you can buy at autozone etc) or.... what i did with my double-din screen i got a switch, when the radio comes up with the warning message saying you cant view stuff while in motion i just flip the switch and that bypasses it..... but id try doing the parking brake wire to the ground (black wire) first and see if that works

 

if you dont hook up the parking brake wire (from radio) to antyhing you'll just have no video capabilities on your radio.... that wire has to be hooked up to a parkign brake, or if you wanna do a bypass you can do that as well... like i said earlier, parking brake wire (from car) to ground wire (black wire)